Re: bad TSO performance in 2.6.9-rc2-BK

[Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>]

On Mon, Sep 27, 2004 at 11:27:24AM +1000, Herbert Xu wrote:
> 
> Indeed, I think the new code means that Minshall's check will disable
> Nagle which is what was keeping TSO working properly.
> 
> Anton, could you please try this patch which disables Minshall's check
> and see what it does?

Never mind.  Minshall is innocent :)

We set the maximum TSO factor bounded by the congestion window.  But
when the congestion window is raised, we don't call tcp_sync_mss
which is the only place that can raise the TSO factor.

So the TSO factor never grows above what we start with.

Cheers,
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